manuelbieh/geolib
Geolib
Geolib is a geospatial calculation library and point analysis tool. It provides a collection of utilities for computing distances, bearings, and areas between coordinates, as well as converting geographic measurements and coordinate formats.
The library features a Well-Known Text geometry parser to convert WKT strings into coordinate structures for polygon analysis. It includes specialized tools for geofencing and point containment, enabling the determination of whether a coordinate falls within a defined polygon or a specified radius.
The toolset covers broad capability areas including location proximity analysis, navigation bearing computation, and data transformation. It can calculate center points, determine bounding boxes, and sort coordinates by proximity to identify nearest neighbors.
The library also provides utilities for validating coordinates and translating distances, areas, and speeds between different metric and imperial standard units.
Features
- Geospatial Calculations - Provides a comprehensive suite of mathematical functions for calculating distances, bearings, and spatial relationships on geographic coordinates.
- Coordinate Distance Calculation - Provides high-accuracy distance calculations between geographic coordinates using the Haversine formula to account for Earth's curvature.
- WKT and WKB Serialization - Converts Well-Known Text strings into usable coordinate structures to represent shapes and polygons.
- Point-in-Polygon Detection - Determines if a coordinate is inside a polygon by counting intersections of a ray with the polygon's edges.
- Proximity Verifications - Verifies if a specific coordinate point falls within a defined radius of another point.
- Point Containment Checks - Verifies if a specific coordinate lies within a defined polygon or within a specified radius.
- Geofencing - Checks if a specific coordinate falls within a defined polygon or within a set radius of another point.
- Coordinate Format Conversions - Maps numerical latitude and longitude values between decimal degrees and degrees-minutes-seconds formats.
- Coordinate Format Transformations - Transforms coordinates between decimal and sexagesimal representations for human readability.
- Geospatial Point Analysis - Implements functions for determining point containment, proximity, and calculating bounding boxes for sets of coordinates.
- Location Proximity Analysis - Sorts lists of coordinates by distance to find the nearest neighbors or the center of a group.
- Navigation Bearing Calculations - Determines the compass direction between two points or calculates a destination based on a bearing and distance.
- Spherical Bearing Calculations - Determines the compass direction between two points using spherical trigonometry.
- Travel Speed Imputers - Determines the speed of travel between two coordinates based on the time elapsed between them.
- Nearest Neighbor Analysis - Sorts a list of coordinates by distance to a reference point to identify the nearest neighbors.
- Path Measurement Utilities - Calculates the total length of a path connecting multiple coordinates or the surface area of a polygon.
- Bounding Box Calculations - Provides utilities to calculate the bounding box enclosing a set of geographic coordinates.
- Point-to-Polygon Transformation - Converts WKT strings into coordinate arrays to represent polygon shapes.
- Compass Heading Calculation - Identifies the cardinal direction from one coordinate point to another using bearing calculations.
- Cardinal Direction Mapping - Converts numeric degree headings into human-readable compass directions.
- Destination Point Calculators - Determines the coordinates of a destination given a starting point, distance, and bearing.
- Point-to-Line Distance Calculations - Computes the shortest distance between a specific point and a line defined by two coordinates.
- Measurement Unit Converters - Provides utilities for translating distances, areas, and speeds between different metric and imperial standard units.
- Travel Speed Calculators - Calculates travel speed between timed coordinates and converts results into units like mph or kmh.
- WKT Geometry Parsers - A tool for converting Well-Known Text strings into coordinate structures to represent and analyze polygon shapes.
- Proximity Search - Orders a list of coordinates by their distance to a reference point to find the closest locations.
- Geospatial Distance Calculations - Provides utilities to compute the shortest distance between a specific coordinate and a line defined by two points.
- Bounding Box Generation - Calculates the minimum and maximum latitude and longitude that encompass a set of coordinates.
- Geometry Center Retrieval - Calculates the central geographic coordinate of a collection of points or a bounding box.
- Data Processing Tools - Provides fundamental geospatial operations and calculations.
- JavaScript Geospatial Libraries - Basic geospatial operations like distance calculation.
